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Flow and heat transfer through packed bed of spheres

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Hello, The study is time dependent, it's 2D axisymmetric, and the physics used are laminar flow and heat transfer in fluids with heat transfer in solids node added to it. It is not converging and the time-dependent solver (BDF) found in the progress section found just below the graphics window is not showing any progress at all. It says unsymmetric matrix found. It stops the simulation and shows errors. Please help.


0 Replies Last Post Oct 15, 2019, 11:10 a.m. EDT
COMSOL Moderator

Hello Yomiyou Michael

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